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Doc's plane gets some ailerons.

Wayne

Administrator
Staff member
Screenshot 2025-05-07 at 1.34.03 PM.webp

Yep - Doc's plane is back on the design table. This time around she is getting a new planform and ailerons. Just roughing it all together at this point, some more to do at this stage, then the next step will be moving into CAD and doing all of the detail work. Tips and ailerons will be detailed out in CAD along with all of the joiners, etc.

This time around she is a 4 meter span, light polyhedral, 3 piece wing. The spar will be the same, but with a wider web to maximize glue area to the carbon caps.
 
View attachment 22904
Yep - Doc's plane is back on the design table. This time around she is getting a new planform and ailerons. Just roughing it all together at this point, some more to do at this stage, then the next step will be moving into CAD and doing all of the detail work. Tips and ailerons will be detailed out in CAD along with all of the joiners, etc.

This time around she is a 4 meter span, light polyhedral, 3 piece wing. The spar will be the same, but with a wider web to maximize glue area to the carbon caps.
It has a Tibetan name: "Thatsa Lottaribs":love:
 
Those are the flaps. This is just the starting point on the design. All things may change, and usually do. I'd like to keep this pretty simple and clean but we will see where Ed takes it, it is his baby. Ailerons and other structures will be added once I move it into CAD.

Yes, lots of ribs. I tightened the rib spacing from 50mm to 40mm. Not a big jump, but sure is a lot of ribs!!
 
Into the sky!

Ed's goal is a woody that makes thermal contests more affordable for folks. The goals are keeping it decently easy to build (as easy as a 4 meter woody can be). It will be a mix of carbon pultrusions, wood and some 3D printed assemblies. It uses a customized fuselage from Blejzyk. We have made 3 prototypes of this over the years, this is the first with ailerons. Hopefully last major redesign. We made it to a beta build from a customer and after several flights they failed the wing. It appears the spar caps peeled off the sheer webs, but hard to say why. Did not get to see the plane during the build and was not at the site when it flew. We dove test our prototypes and had no issues, so that was a mystery. I did spot some concerns that will be addressed in this new design.
 
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